GTAC Observation Log 1. Date : 25/07/2021 2. Observation Sr. No. : 13332 3. Observer : Dharam Vir Lal, Srikrishna Sekhar, Divya Oberoi, santaji N Katore, Russ Taylor, Preshanth Jagannathan, C.H. IshwaraChandra, Sachin Shankar Sherkar 4. Observer\'s Email : dharam@ncra.tifr.res.in, srikrishna@idia.ac.za, div@ncra.tifr.res.in, snkatore@gmail.com, russ@ast.uct.ac.za, pjaganna@nrao.edu, ishwar@ncra.tifr.res.in, sachinsherkar@gmail.com 5. Project Name : 550-850 MHz (band 4) Beam Holography Measurements at uGMRT 6. Project Code : ddtC192 7. Operator(s) : Shilpa, Shriram, Surender 8. Command File : /odisk/gtac/cmd/ddtc192/t.cmd 9. LTA File : /gsbifrdata1/25jul/ddtc192_25jul2021_gsb.lta, /gsbifrdata1/25jul/ddtc192_25jul2021_conttrk_gsb.lta, /gwbifrdata/25jul/ddtc192_25jul2021_gwb.lta, /gwbifrdata2/25jul/ddtc192_25jul2021_conttrk_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Full_Stokes 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. W04 : : ABC timeout. W05 : : ABC timeout W06 : : ABC timeout 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Jul 2021 05:00:00 - 25 Jul 2021 10:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF2 : 550 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : -1 -1 GCODE2 : SUBA2 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : DDTC192 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED ------------------------------------------------------------------------- # sub 3 # C00 C02 C04 C06 C09 C11 C13 W01 W03 W05 E02 E04 E06 S02 S04 # sub 4 # C01 C03 C05 C08 C10 C12 C14 W02 W04 W06 E03 E05 S01 S03 S06 ------------------------------------------------------------------------- 05:00 : Started set-up. 05:30 : Started cmd file. ----------------------------------------------------------------------- 05:35 - 06:30 : Online problem , so restarted online,GSB and GWB. ----------------------------------------------------------------------- 06:30 : Started cmd file. \'/odisk/gtac/cmd/ddtc192/t.cmd\' 10:00 : Command file stopped and observing session over.